Friction hinge



J. J. FRICTIOH Hmm Filed May 5, 1924 Patented Jan. 12, 1926.

UNITED STATES PATENT OFFICE.

JOSEPI'I J. JANCA, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE EMERSONELECTRIC MFG. C0., OF ST. LOUIS, MTSSOURI, A CORPORATION OF MISSOURI.

FRICTION HINGE.

Application `filed May 5,

To aZZ witam it 'may Gomera Be it known that Josnrrr J. JANCA, a citizenof the United States, rcsiding at St. Louis, `viissouri, have invented anew and useful Friction Hinge` of which vthe foilowing is aspecification.

This invention relates to improvements in friction hinges, and consistsin the novel construction hereinafter disclosed.

An object of the invention is to provide a friction hinge particularlyadapted for joining a stationary base section. of an electric fan withthe motor housing, whereby the angularity of the motor housing may bezu'ljustedv without loosening the clamping means of the hinge.

Additional advantages of the invention will be. apparent from thefollowing detailed description thereof taken in conection with theaccompanying drawings, in which F ig. l is a rear elevation of a fanembodying the inventon.

Fig. 2 is a Vertical section through the hinge construction.

Fig. 3 is a Vertical section taken at right angles to Fig. 2.

Fig. at is a detailed view of the clamping plate. i

Particularly in the construction of electric fans, comprising astationary base and a movable upper se:tion composed of the motorhousing, and the fan shaft and fan carried thereby, diificulty has beenexperienced in providing a suitable hinge joint of simple constructionand yet efiic'ient to hold the upper section of the fan in differentangular adjustments without loosening' the clamping' means of the hinge.The. rocking of the upper section of the fan on the pintle of thehingerin the former constructions has resulted in a loosening of theretaining means so that each time the upper section was adjusted theclamping means of the hinge ordinarily would have to be reset. Thisdiffic'ulty has been overcome by the present vention.

In the embodiment of the present invention illustrated .in the drawingthe hinge construction is shown as incorporated in an electric fancomprising a base section which includes a conical pedestal 1 having abifurcated extremity composed of spaced fianges and 3 constitnting thestationary part of the hinge. The fiange 2 has a threaded opening tthrough a thckness thereof and the 1994. Serial No. 711,290.

fiange 3 has an opening 5 of relatively larger diameter than theopening' 4, said two openings being in aXial alinelnent.

Depending from the motor housing` 6 is an extension 7 constituting themovable hlnge portion of the hinge joint. The width of the extension 7is slightly less than the width of the space between the inner faces ofthe fianges 2 and 3, thereby provding av space between one side :face ofthe member 7 and the inner face of the fiange 3 for the reception of arelatively thin clamping plate B. The plate 8 has av horizontal loweredge that fits against the base of the opening between the inner facesof the flanges 2 and 3, preventing turning of the plate, and the upperedge of the plate is rounded to conform to the general Contour of theupper edges of the fianges 2 and 8. The plate 8 is provided with anopening 9 so spacefd that when assembled the opening 9 will be in axialalinement with the openings Lland 5, and the member 7 has an opening 10which in assembled relation registers with the opening 9. The opening 9is in the form of a circular hole of less diameter than the circularopening 5 in the flange 8.

The. pintle of the hinge comprises`l a wing screw having a cylindricalportion 11 the extremity of which is threaded for screw engagement withthe threaded opening i in the flange 2. The inner portion of the.cylindrical section of the screw in assembled rela tion lies Within theopening 10 in the member 7 and is of a diameter slightlj7 less than theopening 10, permitting the mo'vement of the movable portion of the hingethereon. The plate 8 is fitted in the space between one face of themember 7 and the inner face of the flange 3, the portion ll of the Wingscrew passing through the opening 9 in the plate 8. The screw is furtherprovided with an enlarged cylindrical portion 12 and a Wing' section 13for manual manipulation. The diameter of the portion 12 is relativelylarger than the opening 9 in the plate 8 and slightly less than theopening 5 in the flange.

The plate 8 is preferably stamped out of sheet steel and the matchingface of the member 7 therewith is preferably faced off' so that aslidingengagement between the two results.

The clai'nping action of the hinge results by tightening the wing screwinto the threaded opening 4, drawingfithe shoulder formed by the edge ofthe section lagainst the marginal edges of the opening 9 in the plate 8?the plate in turn impinging against the face of the mei'nber 7. Thefrieiional engagement thus accomplished between the plate 8 meinbei T issufiieient to retain the movable s ,cfion of the fan in set angularadjustment-s. The moveinent of the upper section of the n w not looseuthe clamping serew,` as seren' free to nn'n'e'in the opening 10'neniizer 'M andno 'frictional yeng'age-- i to the sercu' as the memberi'oelzed on its pivot. i

Will be ui'idcrsfood tli-it the'housing 'i supports he fan shaft l-l onthe forward 'l of which is mouul'ed the fan blades a l if desii'ed, afan guard 16.

l'hile 1 have described the embodimentf of 1the si'ricture aspai''icularly adapted for use in connection with a fan of the 'typediselosed, it is clear that other and further uses of the structure maybe made.

do not limit myself, therefore, to the exact construction or to thepreferred embodiment of the invention, but `what I claim and (lesire tosecure by Letters Patent is:-

l. A friction hinge comprising a statonary member composed 'of rigidspaced flanges one of which has a threaded hole and the otherof'whic'hihas a holeV of'la'rger diameter and in alinement With thethreadedhole.

a inovable 'member'between:said fiangea a plate between 'the' fiangehaving-'thelargerv hole' and said 'movable1niember, -said movable memberand said plate'vhaving holes in aliney mentl With theholeslin saidflanges; and

and the side face of the' said plate being arranged' to make contactwith the movable `-member substantially throughout the area of theplate, a clamping screw. passing through said larger hole and throughthe holes in said plate .'and the movable member and engaging the holein the other flange and forming a pivot upon which said movable memberturns, and an enlarged"cylindricalportion on said sorew in said largerhole arranged to press against the plate and to' impinge the sameagainst the side Wall of the movable member.

2. A friotion hinge con'iprising a stationar),Y member having rigidspaoedv flanges and a horizonfal Wall atthe base of the' fi'angesintermediate lhe same, and one of zsaid llauges having a threaded h'ole'and the other having ahole of larger diameter Iinalinement with thethreaded hole, af-.movable member'between said fianges,` ap'latedisposed between the movable'fmember- 'and one of'the'flanges, saidplate having ahorizontal lower'edge arranged to seat agamst thehorizon'tal Wall of the' Vstationary Vmember cal portion which. passesthrough'thelarger' hole m one of sald fianges, said cylindrical portionbeing arranged to press againstfthe plate and to elamp `vsaldjplateagainst the vside Wall of said movablefmember substan- *tiallythroughout the area of the plate,

Whereby the movable memberiis frctionally held against displacement.

JosnPH J. JANGA.

